Increasing evidence highlights the role of disrupted circadian rhythms in the neural dysfunctions and sleep disturbances observed in autism spectrum disorder and attention-deficit/hyperactivity disorder. However, the causality and directionality of these associations remain unclear. In this study, we employed a bidirectional two-sample Mendelian…

Research Findings: The ability to manage emotions is thought to be important for regulating stress at a physiological level, yet no prior published studies have examined young children's emotion understanding or knowledge in relation to the stress hormone cortisol. The present study investigated the statistical relation between emotion knowledge…

Children born to mothers with opioid use disorder (OUD) are at increased risk of maltreatment and out-of-home care (OOHC) placement. This study examines the parent-child interaction quality and home environments of 92 New Zealand children with prenatal opioid exposure (OE) and 106 non-opioid-exposed (NE) children. Experiences for those in maternal…